QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

6 km W of Spaulding, Oklahoma

· 23 km deep · released about 24 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Seminole County 18 kmHughes County 24 kmPontotoc County 37 kmPottawatomie County 46 kmOkfuskee County 52 kmCoal County 53 kmPittsburg County 70 kmCleveland County 77 kmMurray County 79 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 1.9 (ml)
Depth
23 km below the surface
Felt
no reports yet
Nearest
Seminole County, 18 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2651 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 24 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 640,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 450,000× the energy of this one
  3. Around the size people start to feel M 3.0 40× the energy of this one
  4. This earthquake M 1.9 about 24 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

Where

Epicentre 35.0192, -96.5078. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Seminole County, OK 18 km (11 mi) SSE of here earthquakes near Seminole County
Hughes County, OK 24 km (15 mi) W of here earthquakes near Hughes County
Pontotoc County, OK 37 km (23 mi) NNE of here earthquakes near Pontotoc County
Pottawatomie County, OK 46 km (29 mi) ESE of here earthquakes near Pottawatomie County
Okfuskee County, OK 52 km (33 mi) SSW of here earthquakes near Okfuskee County
Coal County, OK 53 km (33 mi) NNW of here earthquakes near Coal County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

57 earthquakes have been recorded within 50 km since this one.

  1. 2.0 5 km NE of Centrahoma, Oklahoma
  2. 1.6 6 km NNE of Centrahoma, Oklahoma
  3. 2.4 4 km NNE of Centrahoma, Oklahoma
  4. 1.9 4 km NNE of Centrahoma, Oklahoma
  5. 2.2 4 km NE of Centrahoma, Oklahoma
  6. 1.6 3 km N of Lamar, Oklahoma
  7. 2.5 4 km ESE of Lamar, Oklahoma
  8. 1.5 5 km N of Lamar, Oklahoma
  9. 2.0 5 km N of Lamar, Oklahoma
  10. 1.6 5 km N of Lamar, Oklahoma
  11. 2.0 5 km NNE of Lamar, Oklahoma
  12. 2.0 6 km N of Lamar, Oklahoma
  13. 1.7 7 km SE of Ada, Oklahoma
  14. 2.2 7 km S of Stuart, Oklahoma
  15. 1.9 6 km SSE of Yeager, Oklahoma

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.